Mercurial > lasercutter
annotate src/clojure/lang/ChunkedCons.java @ 10:ef7dbbd6452c
added clojure source goodness
| author | Robert McIntyre <rlm@mit.edu> |
|---|---|
| date | Sat, 21 Aug 2010 06:25:44 -0400 |
| parents | |
| children |
| rev | line source |
|---|---|
| rlm@10 | 1 /** |
| rlm@10 | 2 * Copyright (c) Rich Hickey. All rights reserved. |
| rlm@10 | 3 * The use and distribution terms for this software are covered by the |
| rlm@10 | 4 * Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) |
| rlm@10 | 5 * which can be found in the file epl-v10.html at the root of this distribution. |
| rlm@10 | 6 * By using this software in any fashion, you are agreeing to be bound by |
| rlm@10 | 7 * the terms of this license. |
| rlm@10 | 8 * You must not remove this notice, or any other, from this software. |
| rlm@10 | 9 **/ |
| rlm@10 | 10 |
| rlm@10 | 11 /* rich May 25, 2009 */ |
| rlm@10 | 12 |
| rlm@10 | 13 package clojure.lang; |
| rlm@10 | 14 |
| rlm@10 | 15 final public class ChunkedCons extends ASeq implements IChunkedSeq{ |
| rlm@10 | 16 |
| rlm@10 | 17 final IChunk chunk; |
| rlm@10 | 18 final ISeq _more; |
| rlm@10 | 19 |
| rlm@10 | 20 ChunkedCons(IPersistentMap meta, IChunk chunk, ISeq more){ |
| rlm@10 | 21 super(meta); |
| rlm@10 | 22 this.chunk = chunk; |
| rlm@10 | 23 this._more = more; |
| rlm@10 | 24 } |
| rlm@10 | 25 |
| rlm@10 | 26 public ChunkedCons(IChunk chunk, ISeq more){ |
| rlm@10 | 27 this(null,chunk, more); |
| rlm@10 | 28 } |
| rlm@10 | 29 |
| rlm@10 | 30 public Obj withMeta(IPersistentMap meta){ |
| rlm@10 | 31 if(meta != _meta) |
| rlm@10 | 32 return new ChunkedCons(meta, chunk, _more); |
| rlm@10 | 33 return this; |
| rlm@10 | 34 } |
| rlm@10 | 35 |
| rlm@10 | 36 public Object first(){ |
| rlm@10 | 37 return chunk.nth(0); |
| rlm@10 | 38 } |
| rlm@10 | 39 |
| rlm@10 | 40 public ISeq next(){ |
| rlm@10 | 41 if(chunk.count() > 1) |
| rlm@10 | 42 return new ChunkedCons(chunk.dropFirst(), _more); |
| rlm@10 | 43 return chunkedNext(); |
| rlm@10 | 44 } |
| rlm@10 | 45 |
| rlm@10 | 46 public ISeq more(){ |
| rlm@10 | 47 if(chunk.count() > 1) |
| rlm@10 | 48 return new ChunkedCons(chunk.dropFirst(), _more); |
| rlm@10 | 49 if(_more == null) |
| rlm@10 | 50 return PersistentList.EMPTY; |
| rlm@10 | 51 return _more; |
| rlm@10 | 52 } |
| rlm@10 | 53 |
| rlm@10 | 54 public IChunk chunkedFirst(){ |
| rlm@10 | 55 return chunk; |
| rlm@10 | 56 } |
| rlm@10 | 57 |
| rlm@10 | 58 public ISeq chunkedNext(){ |
| rlm@10 | 59 return chunkedMore().seq(); |
| rlm@10 | 60 } |
| rlm@10 | 61 |
| rlm@10 | 62 public ISeq chunkedMore(){ |
| rlm@10 | 63 if(_more == null) |
| rlm@10 | 64 return PersistentList.EMPTY; |
| rlm@10 | 65 return _more; |
| rlm@10 | 66 } |
| rlm@10 | 67 } |